Description SECRAFT Receiver Bed (Blue) Precision machined from AL6061 aluminum (anodized).  Nice clean way to mount a receiver. Weight: 18.0g Includes: 3M Dual Lock Two Rubber Washers Two Screw Bolts Two Washers Two Stop Washers Bed Dimensions: 10mm (1.5″) x 28mm (1.1″) Mounting screws distance: 50MM (2″) Apart Height 10mm (.39″)